The GZK Feature in the Spectrum of UHECRs: What Is It Telling Us?Daniel de Marco, Pasquale Blasi, Angela V. OlintoProceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the International Union of Pure and Applied Physics (IUPAP). Editors: T. Kajita, Y. Asaoka, A. Kawachi, Y. Matsubara and M. Sasaki, [ADS]

Low Statistics of EHECRsA. V. Olinto, D. de Marco, P. BlasiExtremely High-Energy Cosmic Ray. Proceedings of the International Workshop held November 5-6, 2002, at RIKEN (the Institute of Physical and Chemical Research). Precursor of Challenging Investigation Series No. 3. Edited by M. Teshima and T. Ebisuzaki. IS [ADS]